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BEGIN:VEVENT
SUMMARY:Radosław Kycia (Cracow University of Technology)
DTSTART;VALUE=DATE-TIME:20200519T160000Z
DTEND;VALUE=DATE-TIME:20200519T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/1
DESCRIPTION:Title: C
artan Connection for Schrodinger equation. The nature of vacuum\nby Ra
dosław Kycia (Cracow University of Technology) as part of QM Foundations
& Nature of Time seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QMFNoT/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Arkadiusz Jadczyk (Toulouse\, CNRS)
DTSTART;VALUE=DATE-TIME:20200526T160000Z
DTEND;VALUE=DATE-TIME:20200526T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/2
DESCRIPTION:Title: T
ime of arrival in quantum theory\nby Arkadiusz Jadczyk (Toulouse\, CNR
S) as part of QM Foundations & Nature of Time seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QMFNoT/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (University College Dublin)
DTSTART;VALUE=DATE-TIME:20200602T160000Z
DTEND;VALUE=DATE-TIME:20200602T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/3
DESCRIPTION:Title: R
eview of book "The universe in helium droplet" by G. Volovik\nby Krzys
ztof Pomorski (University College Dublin) as part of QM Foundations & Natu
re of Time seminar\n\n\nAbstract\nThere are fundamental relations between
three vast areas of physics: particle physics\, cosmology\, and condensed
matter physics. The fundamental links between the first two areas — in o
ther words\, between micro- and macro-worlds — have been well establishe
d. There is a unified system of laws governing the scales from subatomic p
articles to the cosmos and this principle is widely exploited in the descr
iption of the physics of the early universe. This book aims to establish a
nd define the connection of these two fields with condensed matter physics
. According to the modern view\, elementary particles (electrons\, neutrin
os\, quarks\, etc.) are excitations of a more fundamental medium called th
e quantum vacuum. This is the new ‘aether’ of the 21st century. Electr
omagnetism\, gravity\, and the fields transferring weak and strong interac
tions all represent different types of the collective motion of the quantu
m vacuum. Among the existing condensed matter systems\, a quantum liquid c
alled superfluid 3He-A most closely represents the quantum vacuum. Its qua
siparticles are very similar to the elementary particles\, while the colle
ctive modes are analogues of photons and gravitons. The fundamental laws o
f physics\, such as the laws of relativity (Lorentz invariance) and gauge
invariance\, arise when the temperature of the quantum liquid decreases. \
n\nBook: http://www.issp.ac.ru/ebooks/books/open/The_Universe_in_a_Helium_
Droplet.pdf\n
LOCATION:https://researchseminars.org/talk/QMFNoT/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ilan Roth (Berkeley)
DTSTART;VALUE=DATE-TIME:20200609T160000Z
DTEND;VALUE=DATE-TIME:20200609T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/4
DESCRIPTION:Title: F
rom Braids to Knots\; Topological features in Solar Magnetic Fields – an
d beyond…\nby Ilan Roth (Berkeley) as part of QM Foundations & Natur
e of Time seminar\n\n\nAbstract\nThe generally accepted structure of magne
tic fields depicts them as field lines in $R^3$ with curvature\, rotation
and wiggles\, satisfying $\\nabla\\cdot B=0$. Their observed configuration
allows us to implement the powerful topological methods\, opening a new v
enue for an interpretation of various solar\, interplanetary and astrophys
ical phenomena. Direct imaging of the coronal fields pinpoints to their br
aiding structure\, large solar wind field reversal (switchback) and interm
ittent fading of energetic flare ions suggest that coronal braided field m
ay have been carried by the solar wind. The interconnection between the ma
thematical braids and knots is applied to the topologically non-trivial ma
gnetized structures and their dynamics\, from solar corona and the interpl
anetary medium to the astrophysical Herbig – Haro jets. The topological
invariants attached to a given knot/braid become the crucial factor in the
evolution and interpretation of the phenomena in space. The methods invol
ved cover classical as well as analogues of quantum procedures. The analys
is results in conjectures regarding (i) stability of coronal magnetic loop
s under large oscillations\, (ii) their evolution through successive emerg
ence/decay of heated magnetic braids\, (iii) their morphism into the solar
wind knotty structures and (iv) large scale narrow jets emitted in star-f
orming regions. These conjectures may contribute significantly to the unde
rstanding of physical processes in the lab and in solar/astrophysical medi
um\, particularly in the dynamo produced magnetic structures as observed b
y Parker Solar Probe.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Manfried Faber (TU Wien)
DTSTART;VALUE=DATE-TIME:20200616T160000Z
DTEND;VALUE=DATE-TIME:20200616T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/5
DESCRIPTION:Title: T
opological excitations of a scalar SO(3)-theory\nby Manfried Faber (TU
Wien) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\nW
e discuss a model with only three degrees of freedom in Minkowski space-ti
me. This model is related to Dirac monopoles\, one can see it as a general
isation of the Sine-Gordon model from 1D to 3D\, or a modification of the
Skyrme model. Starting from a Lagrangian\, the intention of the model is t
o provide a geometrical description of electromagnetic phenomena. The mode
l has three topological quantum numbers which can be compared to the prope
rties of charge\, spin and photon number. We discuss stable solitonic solu
tions and compare them to the properties of electrons and photons.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jarek Duda (Jagiellonian University)
DTSTART;VALUE=DATE-TIME:20200623T160000Z
DTEND;VALUE=DATE-TIME:20200623T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/6
DESCRIPTION:Title: T
opological charge as electric charge – can we get all particles this way
?\nby Jarek Duda (Jagiellonian University) as part of QM Foundations &
Nature of Time seminar\n\n\nAbstract\nWe can repair Gauss law to return o
nly integer charges (as in nature) by interpreting EM field as curvature o
f some e.g. vector field\, this way counting winding number (topological c
harge) using Gauss-Bonnet theorem as Gauss law (Faber’s model). I will l
ightly introduce it and would like to discuss if we could expand it to a f
ield which excitations (e.g. topological) agree with the entire particle p
hysics\, could be effectively described by something close to the Standard
Model. \n\nKind of superfuid biaxial nematic: 3 distinguishable axes in e
very point (using tensor field instead of molecules) seems quite promising
here. They can form hedgehog configuration with one of 3 axes\, getting 3
leptons (as spatial dimensions)\, trying to align the second axis for it
we cannot do it due to the hairy ball theorem (no naked charges – lepton
s need magnetic dipoles)\, then baryon-like configurations enforcing some
positive charge: needed to be compensated in neutron (hence it is heavier
than proton)\, charge is shared in deuteron for binding (leading to observ
ed electric quadrupole moment).\n
LOCATION:https://researchseminars.org/talk/QMFNoT/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Łukasz Stępień (PU Krakow)
DTSTART;VALUE=DATE-TIME:20200630T160000Z
DTEND;VALUE=DATE-TIME:20200630T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/7
DESCRIPTION:Title: T
his and that on solitons and some their applications\nby Łukasz Stęp
ień (PU Krakow) as part of QM Foundations & Nature of Time seminar\n\n\nA
bstract\nI am going to talk about solitons. I will remind brieﬂy their h
istory and some fundamental facts from soliton theory. Next\, I will say a
bout one of the important tools for investigation of soliton equations: Bo
gomolny (Bogomol’nyi) equations\, called also as Bogomolny decomposition
\, and I will present also an example - Bogomolny equations in the so-call
ed baby BPS Skyrme model. Later I will say about a soliton model of partic
le.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Robert Brady (Cambridge)
DTSTART;VALUE=DATE-TIME:20200707T160000Z
DTEND;VALUE=DATE-TIME:20200707T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/8
DESCRIPTION:Title: I
n memoriam: Yves Couder\nby Robert Brady (Cambridge) as part of QM Fou
ndations & Nature of Time seminar\n\n\nAbstract\nYves Couder died on 2 Apr
il 2019. He showed how to make droplets of oil bounce on an oil surface\,
spawning a renewed interest in the net forces between oscillating systems.
Bouncing droplets are governed by the ordinary equations of Newtonian mec
hanics\, yet experimentally their motion mimics the known equations of spe
cial relativity\, electromagnetism\, and quantum mechanics. I will show wh
y this is the case\, in an idealised system where the pumping acceleration
can be neglected. I will then briefly discuss my ongoing research in a re
lated system in superfluid helium\, where pumping is superfluous and the p
redictions may be tested against experiment.\n\nIn order to maintain your
interest\, and to pay respect to Yves\, I will give an interpretation of h
is work which is controversial. If his results had been known 100 years ag
o\, they would probably have changed the debate\, from 1905 to 1922\, betw
een Einstein and Lorentz on how to interpret the equations of special rela
tivity.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Arkadiusz Jadczyk (Toulouse\, CNRS)
DTSTART;VALUE=DATE-TIME:20200714T160000Z
DTEND;VALUE=DATE-TIME:20200714T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/9
DESCRIPTION:Title: O
rder out of chaos. Fractals out of qubits\nby Arkadiusz Jadczyk (Toulo
use\, CNRS) as part of QM Foundations & Nature of Time seminar\n\n\nAbstra
ct\nTheory can predict what happens when several non-commuting observables
are being simultaneously measured. The results of such repetitive measur
ements are random and chaotic\, but distinct and organized fractal attract
ors may arise. We study quantum iterated function systems for a qubit\, wh
ere measurements and quantum jumps are implemented by Moebius transformati
ons of the Bloch sphere. As an example\, a quantum fractal resulting from
non-commuting parabolic transformations is discussed in detail.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kenneth Wharton (SJSU)
DTSTART;VALUE=DATE-TIME:20200721T160000Z
DTEND;VALUE=DATE-TIME:20200721T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/10
DESCRIPTION:Title:
Bell's Theorem: Implications and Misapprehensions\nby Kenneth Wharton
(SJSU) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\nD
espite the fact that Bell’s Theorem tells us something profound about ou
r universe\, there are still many misapprehensions about exactly what it m
eans\, even among physicists. For example\, it is often incorrectly chara
cterized as disproving hidden variables\, or proving action-at-a-distance.
Even experts in quantum foundations are sometimes unaware of subtleties
concerning the role of an “arrow of time” in Bell’s analysis and the
possibilities of using retrocausation to model quantum entanglement in a
locally-mediated\, spacetime-based framework. This talk will attempt to c
larify these and other issues\, detailing an explicit retrocausal model wh
ich accounts for maximally entangled states. \n\nBased on "Colloquium: Be
ll's theorem and locally mediated reformulations of quantum mechanics"\, K
.B. Wharton and N. Argaman. Published online\, 18 May 2020\, in the 1 Apr
il 2020 issue of Reviews of Modern Physics (Vol. 92\, No. 2): URL: https:/
/link.aps.org/doi/10.1103/RevModPhys.92.021002 (If you do not have access
to Rev Mod Phys\, a similar arXiv version can be found here: https://arxi
v.org/abs/1906.04313 )\n
LOCATION:https://researchseminars.org/talk/QMFNoT/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jarek Duda (Jagiellonian University)
DTSTART;VALUE=DATE-TIME:20200728T160000Z
DTEND;VALUE=DATE-TIME:20200728T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/11
DESCRIPTION:Title:
Discussion: are there experiments proving or disproving time symmetry?
\nby Jarek Duda (Jagiellonian University) as part of QM Foundations & Natu
re of Time seminar\n\n\nAbstract\nTime/CPT symmetry is at heart of many mo
dels of physics\, like unitary evolution in quantum mechanics\, or Lagrang
ian formalism we use from classical mechanics\, electromagnetism\, up to g
eneral relativity and quantum field theories. However\, this symmetry is q
uite nonintuitive\, very difficult to really accept – mainly due to ther
modynamical counterarguments. \nLet us try to discuss these arguments\, es
pecially experiment-based. I will present some for us to discuss (adding m
ore is welcomed)\, for example: Wheeler’s\, delayed choice quantum erase
r (DCQE)\, “asking photons where they have been”\, “photonic quantum
routers”\, Shor algorithm as more sophisticated DCQE\, also: Anderson l
ocalization (starting with rho~sin^2 in [0\,1])\, Born rule\, Bell violati
on.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (UC Dublin)
DTSTART;VALUE=DATE-TIME:20200804T160000Z
DTEND;VALUE=DATE-TIME:20200804T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/12
DESCRIPTION:Title:
From superfluidity to cosmology and elementary particles (based on "The un
iverse in helium droplet" by G. Volovik”)\nby Krzysztof Pomorski (UC
Dublin) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\
nThere are fundamental relations between three vast areas of physics: part
icle physics\, cosmology\, and condensed matter physics. This book aims t
o establish and define the connection of these two fields with condensed m
atter physics. According to the modern view\, elementary particles (electr
ons\, neutrinos\, quarks\, etc.) are excitations of a more fundamental med
ium called the quantum vacuum. This is the new ‘aether’ of the 21st ce
ntury. Electromagnetism\, gravity\, and the fields transferring weak and s
trong interactions all represent different types of the collective motion
of the quantum vacuum. Among the existing condensed matter systems\, a qua
ntum liquid called superfluid 3He-A most closely represents the quantum va
cuum. Its quasiparticles are very similar to the elementary particles\, wh
ile the collective modes are analogues of photons and gravitons. The 3He A
–B interface provides an unprecedented type of superfluid boundary betwe
en two degenerate macroscopically coherent quantum systems which display d
ifferent broken symmetries and rich family of topological defects.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Christopher Halcrow (Leeds)
DTSTART;VALUE=DATE-TIME:20200811T160000Z
DTEND;VALUE=DATE-TIME:20200811T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/13
DESCRIPTION:Title:
Nuclei as Skyrmions\nby Christopher Halcrow (Leeds) as part of QM Foun
dations & Nature of Time seminar\n\n\nAbstract\nIn standard models of nucl
ear physics\, nuclei are described as point particles with spin and isospi
n degrees of freedom. The baryon number (the number of protons plus the nu
mber of neutrons) is conserved in nuclear interactions - this fact is usua
lly put in “by hand”. In contrast\, the Skyrme model describes nuclei
as topological solitons. The baryon number is conserved due to a topologic
al invariant of the theory while spin and isospin appear as quantised isom
etries of the system. This talk is in two parts: first\, I will try and co
nvince you that the Skyrme model is a reasonable model of nuclear physics.
It reproduces several known phenomena: nuclear clustering\, isospin symme
try and rotational bands in energy spectra. I will then show that the Skyr
me model is very different than standard nuclear models: the notion of pos
ition breaks down\, the Deuteron is a torus and novel scatterings can take
place. These surprising facts can give new explanations for some nuclear
properties. For instance\, the existence of a toroidal Skyrmion explains t
he attractive spin-orbit force in the nucleon-nucleon interaction as shown
recently in arXiv:2007.01304. I will explain this phenomena assuming no b
ackground knowledge of Skyrmions or nuclear physics.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Robert Close (Clark College)
DTSTART;VALUE=DATE-TIME:20200818T160000Z
DTEND;VALUE=DATE-TIME:20200818T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/14
DESCRIPTION:Title:
Classical Wave Mechanics\nby Robert Close (Clark College) as part of Q
M Foundations & Nature of Time seminar\n\n\nAbstract\nThis is an attempt t
o describe elementary particles using classical continuum mechanics. First
\, a wave equation is derived for infinitesimal shear waves in an elastic
solid. Next\, a change of variables is used to describe the waves in terms
of classical spin angular momentum density\, which is the field whose cur
l is equal to twice the classical momentum density. The second-order wave
equation is then converted to a first-order Dirac equation. Plane wave sol
utions are presented\, and the dynamical operators of relativistic quantum
mechanics are derived. Wave interference gives rise to the Pauli exclusio
n principle and electromagnetic potentials.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jarek Duda (Jagiellonian University)
DTSTART;VALUE=DATE-TIME:20200901T160000Z
DTEND;VALUE=DATE-TIME:20200901T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/15
DESCRIPTION:Title:
Maximal Entropy Random Walk: repairing diffusion-QM disagreement\nby J
arek Duda (Jagiellonian University) as part of QM Foundations & Nature of
Time seminar\n\n\nAbstract\nConsidering diffusion or chaos in [0\,1] range
leads to uniform stationary probability distribution rho=1. In contrast\,
QM predicts localized rho~sin^2 there. This disagreement is crucial e.g.
for semiconductors – standard diffusion would predict nearly uniform ele
ctron distribution\, allowing them to flow – incorrectly expecting it to
be a conductor. In contrast\, QM predicts strong e.g. Anderson localizati
on preventing conductance.\n\nMaximal Entropy Random Walk (MERW) allows to
understand and repair this disagreement - turns out that standard random
walk often only approximates the (Jaynes) principle of maximal entropy\, w
hich is crucial for statistical physics models – MERW is the most random
among random walk\, thanks of it leading to stationary probability distri
bution exactly as quantum ground state – with localization property. In
contrast to standard random walk\, MERW is also scale-free\, time symmetri
c and nonlocal. It also has many other applications (~160 citations).\n
LOCATION:https://researchseminars.org/talk/QMFNoT/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Fritz W. Bopp (Siegen U.)
DTSTART;VALUE=DATE-TIME:20200915T160000Z
DTEND;VALUE=DATE-TIME:20200915T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/16
DESCRIPTION:Title:
How to Avoid Absolute Determinismin Two Boundary Quantum Dynamics\nby
Fritz W. Bopp (Siegen U.) as part of QM Foundations & Nature of Time semin
ar\n\n\nAbstract\nArguments for a two boundary theory are outlined. A quan
tum statistical effect plays a central role. Plausible concepts of how in
such a theory an approximate causal macroscopic theory can emerge are pres
ented. A problem with simple implementations of the two boundary theory is
that effective or real willful decisions can not be added as there is no
consecutive macroscopic time ordering of such effective or real willful de
cision points. We present a somewhat drastic but somehow beautiful way to
avoid it.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/16/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Álvaro García López (URJC)
DTSTART;VALUE=DATE-TIME:20200929T160000Z
DTEND;VALUE=DATE-TIME:20200929T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/17
DESCRIPTION:Title:
On an electrodynamic origin of quantum fluctuations\nby Álvaro Garcí
a López (URJC) as part of QM Foundations & Nature of Time seminar\n\n\nAb
stract\nWe use the Liénard–Wiechert potential to show that very violent
fluctuations are experienced by an electromagnetic charged extended parti
cle when it is perturbed from its rest state. The feedback interaction of
Coulombian and radiative fields among different charged parts of the parti
cle makes uniform motion unstable. Then\, we show that radiative fields an
d radiation reaction produce dissipative and antidamping effects\, trigger
ing a self-oscillation. Finally\, we compute the self-potential\, which in
addition to rest and kinetic energy\, gives rise to a new contribution th
at shares features with the quantum potential. We suggest that this contri
bution to self-energy produces a symmetry breaking of the Lorentz group\,
bridging classical electromagnetism and quantum mechanics\n
LOCATION:https://researchseminars.org/talk/QMFNoT/17/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dagomir Kaszlikowski\, Pawel Kurzynski (NUS)
DTSTART;VALUE=DATE-TIME:20201006T160000Z
DTEND;VALUE=DATE-TIME:20201006T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/18
DESCRIPTION:Title:
Another take on negative probabilities?\nby Dagomir Kaszlikowski\, Paw
el Kurzynski (NUS) as part of QM Foundations & Nature of Time seminar\n\n\
nAbstract\nWe present preliminary studies of basic information-theoretic a
nd computational properties of negative binary probability distribution ca
lled nebit: p(0)=1+\\delta\, p(1)=-\\delta. We show an interesting computa
tional model based on quasi-stochastic processes between an ordinary bit a
nd nebit. Finally\, we show that some classical information processing pro
tocols can be more effective with an access to nebits.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/18/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marek Danielewski (AGH)
DTSTART;VALUE=DATE-TIME:20201229T170000Z
DTEND;VALUE=DATE-TIME:20201229T180000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/19
DESCRIPTION:Title:
Foundations of the Quaternion Quantum Mechanics\nby Marek Danielewski
(AGH) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\nWe
show that quaternion quantum mechanics has well-founded mathematical root
s and can be derived from the model of the elastic continuum by French mat
hematician Augustin Cauchy\, i.e.\, it can be regarded as representing the
physical reality of elastic continuum. Starting from the Cauchy theory (c
lassical balance equations for isotropic Cauchy-elastic material) and usin
g the Hamilton quaternion algebra\, we present a rigorous derivation of th
e quaternion form of the non- and relativistic wave equations. The family
of the wave equations and the Poisson equation are a straightforward conse
quence of the quaternion representation of the Cauchy model of the elastic
continuum. This is the most general kind of quantum mechanics possessing
the same kind of calculus of assertions as conventional quantum mechanics.
The problem of the Schrödinger equation\, where imaginary ‘i’ should
emerge\, is solved. This interpretation is a serious attempt to describe
the ontology of quantum mechanics\, and demonstrates that\, besides Bohmia
n mechanics\, the complete ontological interpretations of quantum theory e
xists. The model can be generalized and falsified. To ensure this theory t
o be true\, we specified problems\, allowing exposing its falsity.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/19/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Mark Hadley (Warwick)
DTSTART;VALUE=DATE-TIME:20210126T170000Z
DTEND;VALUE=DATE-TIME:20210126T180000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/20
DESCRIPTION:Title:
Time orientability. What it is and why it is important.\nby Mark Hadle
y (Warwick) as part of QM Foundations & Nature of Time seminar\n\n\nAbstra
ct\nI will explain what the orientability of time is\, in particular a spa
ce time that is not time orientable. In principle this can explain the qua
ntum world. It allows topology change in general relativity. I will show s
pace time structure with net electric charge from the source free Maxwell
equations. And the strange property for spin half arises naturally in part
icle models that are not time orientable. I’ll conclude by describing a
definitive test of time non orientability – with a positive result.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/20/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Paweł Błasiak (IFJ PAN)
DTSTART;VALUE=DATE-TIME:20211014T150000Z
DTEND;VALUE=DATE-TIME:20211014T160000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/21
DESCRIPTION:Title:
What is the weight of locality and free choice?\nby Paweł Błasiak (I
FJ PAN) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\n
Is physical reality local\, or does what we do here and now have an immedi
ate influence on events elsewhere? Do we have free choice or are our decis
ions predetermined? In this talk\, I will briefly recall how physicists un
derstand these concepts\, and how Bell’s theorem undermines our most che
rished intuitions about cause-and-effect on the fundamental level. I will
also show how to quantitatively compare the assumptions of locality and fr
ee choice\, with a view to better appreciate their role and weight for cau
sal (or realist) explanations of observed correlations. \n\nReference:\nP.
Blasiak\, E. M. Pothos\, J. M. Yearsley\, C. Gallus\, and E. Borsuk\n“V
iolations of locality and free choice are equivalent resources in Bell exp
eriments”\nPNAS 118 e2020569118 (2021)\nhttps://doi.org/10.1073/pnas.202
0569118\n\nPopular press release:\nEurekAlert!: https://www.eurekalert.org
/news-releases/671079\n
LOCATION:https://researchseminars.org/talk/QMFNoT/21/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Álvaro García López (URJC)
DTSTART;VALUE=DATE-TIME:20211029T150000Z
DTEND;VALUE=DATE-TIME:20211029T160000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/22
DESCRIPTION:Title:
Hidden fields preclude the demonstration of Bell-type theorem\nby Álv
aro García López (URJC) as part of QM Foundations & Nature of Time semin
ar\n\n\nAbstract\nWe demonstrate that classical local field theories can v
iolate Bell’s theorem. To this end\, we\nargue that the physical magnitu
des appearing in such theories correspond to hidden fields of dynamical na
ture. This requires reconsidering Bell’s proof in terms of random fields
\, what prevents the expression of the correlation integral as a spacetime
-independent variable. Then\, taking into account that the probability dis
tribution evolves in time\, we show that the spin-correlation cannot be ex
pressed in terms of a probability density defined on initial data\, which
is independent of the measurement process. Finally\, we derive a new inequ
ality that is not violated by quantum correlation functions of entangled s
pin pairs. Following recent results\, we propose that Maxwell’s classica
l electromagnetism and its general covariant formulation might be the so l
ong-desired hidden variable theory that produces quantum fluctuations.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/22/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jarek Duda (JU)
DTSTART;VALUE=DATE-TIME:20211111T160000Z
DTEND;VALUE=DATE-TIME:20211111T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/23
DESCRIPTION:Title:
Exploring resemblance between liquid crystals topological defects and part
icle physics\nby Jarek Duda (JU) as part of QM Foundations & Nature of
Time seminar\n\n\nAbstract\nThere are experimentally observed long-range
e.g. Coulomb-like interactions for topological defects in liquid crystals\
, suggesting investigation how far can we take this resemblance with parti
cle physics. I will discuss postulating skyrmion-like Lagrangian to get el
ectromagnetism for their effective dynamics\, interpreting filed curvature
as electric field - making Gauss law count (quantized) topological charge
. For biaxial nematic - with 3 distinguished axes\, hedgehogs of one of 3
axes are different mass realizations of the same topological charge - rese
mbling 3 leptons. Further baryon-like topological structures require charg
e\, which has to be compensated for neutron - suggesting why it is heavier
than proton. For analog of quantum phase there is derived Klein-Gordon-li
ke equation\n
LOCATION:https://researchseminars.org/talk/QMFNoT/23/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marian Kupczyński (UQO)
DTSTART;VALUE=DATE-TIME:20211125T160000Z
DTEND;VALUE=DATE-TIME:20211125T180000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/24
DESCRIPTION:Title:
Quantum nonlocality: how does nature do it?\nby Marian Kupczyński (UQ
O) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\nLocal
realistic and stochastic hidden variable models define experimental proto
cols\, which are inconsistent with experimental protocols used in real Bel
l Tests. Therefore\, it is not surprising that they fail to describe corre
ctly the experimental data. In 2009 Nicholas Gisin claimed in Science\, th
at quantum correlations come from outside the space-time due to the quantu
m magic. Since we do not believe in magic\, we propose a locally causal ex
planation of these correlations. Neither super-determinism nor retro- caus
ality is needed\, nor is experimenter’s freedom of choice (EFO) compromi
sed. In our contextual model\, setting dependent variables describing meas
uring instruments are correctly introduced. Outcomes are predetermined bot
h by instrument variables and variables describing incoming correlated sig
nals at the moment of the measurement. There does not exist a joint probab
ility distribution of variables describing all the possible settings\, thu
s Bell inequalities may not be derived. In this talk\, based on the artic
les listed below\, we also explain in detail why the assumption called fre
e choice-no conspiracy-measurement independence has nothing to do with EFO
and should be rather called noncontextuality assumption. The violation of
Bell inequalities neither implies the nonlocality of Nature nor the viola
tion of EFO. It only confirms the contextuality of some observables in qu
antum domain and that outcomes are not predetermined before the experiment
is done.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/24/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Valeriy Sbitnev (Berkeley)
DTSTART;VALUE=DATE-TIME:20211209T160000Z
DTEND;VALUE=DATE-TIME:20211209T180000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/25
DESCRIPTION:Title:
Quaternion algebra on 4D superfluid quantum space-time. Gravitomagnetic eq
uations and something else\nby Valeriy Sbitnev (Berkeley) as part of Q
M Foundations & Nature of Time seminar\n\n\nAbstract\nGravitomagnetic equa
tions result from applying quaternionic differential operators to the ener
gy–momentum tensor. These equations are similar to the Maxwell’s EM eq
uations. Both sets of the equations are isomorphic after changing orientat
ion of either the gravitomagnetic orbital force or the magnetic induction.
The gravitomagnetic equations turn out to be parent equations generating
the following set of equations: (a) the vorticity equation giving solution
s of vortices with nonzero vortex cores and with infinite lifetime\; (b) t
he Hamilton–Jacobi equation loaded by the quantum potential. This equati
on in pair with the continuity equation leads to getting the Schrödinger
equation describing a state of the superfluid quantum medium (a modern ver
sion of the old ether)\; (c) gravitomagnetic wave equations loaded by forc
es acting on the outer space. These waves obey to the Planck’s law of ra
diation.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/25/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Giulia Rubino (Bristol)
DTSTART;VALUE=DATE-TIME:20211216T160000Z
DTEND;VALUE=DATE-TIME:20211216T180000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/26
DESCRIPTION:Title:
Quantum superposition of thermodynamic evolutions with opposing time's arr
ows\nby Giulia Rubino (Bristol) as part of QM Foundations & Nature of
Time seminar\n\n\nAbstract\nMicroscopic physical laws are time-symmetric\,
hence\, a priori there exists no preferential temporal direction. However
\, the second law of thermodynamics allows one to associate the "forward''
temporal direction to a positive variation of the total entropy produced
in a thermodynamic process\, and a negative variation with its "time-rever
sal'' counterpart. This definition of a temporal axis is normally consider
ed to apply in both classical and quantum contexts. Yet\, quantum physics
admits also superpositions between forward and time-reversal processes\, w
hereby the thermodynamic arrow of time becomes quantum-mechanically undefi
ned. In this talk\, I will show that a definite thermodynamic time's arrow
can be restored by a quantum measurement of entropy production\, which ef
fectively projects such superpositions onto the forward (time-reversal) ti
me-direction when large positive (negative) values are measured. Remarkabl
y\, for small values (of the order of plus or minus one)\, the amplitudes
of forward and time-reversal processes can interfere\, giving rise to entr
opy-production distributions featuring a more or less reversible process t
han either of the two components individually\, or any classical mixture t
hereof.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/26/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Tim Palmer (Oxford)
DTSTART;VALUE=DATE-TIME:20220203T160000Z
DTEND;VALUE=DATE-TIME:20220203T180000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/27
DESCRIPTION:Title:
Discretisation of the Bloch Sphere\, Fractal Invariant Sets and Bell’s T
heorem\nby Tim Palmer (Oxford) as part of QM Foundations & Nature of T
ime seminar\n\n\nAbstract\nMax Planck famously introduced the notion of di
scretised packets of energy\, quanta\, thus kickstarting the development o
f our most successful theory of physics\, replacing classical theories in
which energy varies continuously. Despite its success\, however\, the conc
epts of reality and local causality are deeply problematic in quantum mech
anics. Such problems may lie at the heart of why it has been so difficult
to synthesise quantum and gravitational physics. \nMotivated by these issu
es\, we apply Planck’s discretisation insight again\, but this time to t
he continuum of quantum mechanics’ state space - complex Hilbert Space.
A particular discretisation is discussed - one which draws on number theor
etic properties of trigonometric functions. This leads to a model of quant
um physics which is necessarily superdeterministic in character\, that is
to say violates the Statistical Independence assumption in Bell’s Theore
m. Because of this\, the model does not need to invoke concepts of indefin
ite reality or nonlocality to explain the violation of Bell’s inequality
\n
LOCATION:https://researchseminars.org/talk/QMFNoT/27/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Donald C. Chang (HKUST)
DTSTART;VALUE=DATE-TIME:20220218T140000Z
DTEND;VALUE=DATE-TIME:20220218T160000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/28
DESCRIPTION:Title:
What is the origin of the quantum wave function? A new model on wave–par
ticle duality\nby Donald C. Chang (HKUST) as part of QM Foundations &
Nature of Time seminar\n\n\nAbstract\nA well-known mystery in quantum mech
anics is wave–particle duality: Is an electron a point mass or a physica
l wave? What is the physical meaning of its wave function? About a hundred
years ago\, there was a famous debate between Bohr and Einstein on this t
opic. Their question is still open today. This talk reviews a new theoreti
cal framework to address this problem. We hypothesize that both photons an
d electrons are quantized excitation waves of the vacuum\, the physical pr
operties of which can be modeled based on the Maxwell theory. Using the me
thod of Helmholtz decomposition\, one can show that the wave function of t
he particle is associated with an electric vector potential called “ Z
”\, which plays the role of basic field for the excitation wave. Using t
his framework\, the quantum wave equations can be derived based on a quant
ization of the Maxwell theory. This work suggests that\, the quantum wave
function truly represents a physical wave\; the wave packet looks like a
“particle” only in the macroscopic view. Because the vacuum excitation
obeys the principle of all-or-none\, the probability of detecting this
“particle” is related to the wave function as suggested in the Copenha
gen interpretation\n
LOCATION:https://researchseminars.org/talk/QMFNoT/28/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marc Fleury
DTSTART;VALUE=DATE-TIME:20220303T160000Z
DTEND;VALUE=DATE-TIME:20220303T180000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/29
DESCRIPTION:Title:
Everything is connected to everything\, but how? Probing the nature of qua
ntum entanglement\nby Marc Fleury as part of QM Foundations & Nature o
f Time seminar\n\n\nAbstract\nQuantum Entanglement is routinely observed i
n the lab\, with photons\, electrons\, atoms\, molecules and now whole org
anisms. But what underlying mechanism is responsible for the causally sepa
rated yet correlated outcomes we observe? We review state of the art phot
onic Bell violations\, and identify possible theoretical background-based
candidates. We proposed and conducted a photonic Bell violation experimen
t\, featuring a geometry with a rotating Foucault mirror that tested this
background field hypothesis by removing / gating said background intermitt
ently. The observation of Bell violations proved that if a background fiel
d exists and is responsible for entanglement\, then the violations cannot
be due to a traveling (including superluminal) waves. This experimental re
sult rules out superluminal theories (including instantaneous). We logical
ly deduce that the effects could be due to a time averaged standing wave.\
n
LOCATION:https://researchseminars.org/talk/QMFNoT/29/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kelvin Onggadinata\, Robert Brady\, Louis Vervoort\, Jarek Duda
DTSTART;VALUE=DATE-TIME:20220317T140000Z
DTEND;VALUE=DATE-TIME:20220317T160000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/30
DESCRIPTION:Title:
Bell violation short talks (4 x 15 minutes) and discussion\nby Kelvin
Onggadinata\, Robert Brady\, Louis Vervoort\, Jarek Duda as part of QM Fou
ndations & Nature of Time seminar\n\n\nAbstract\nKelvin Onggadinata “Loc
al Activation of Non-locality With Negative Bits” ( https://arxiv.org/pd
f/2106.07945 )\n\nRobert Brady "Bell correlations in stage magic" ( https
://arxiv.org/pdf/1502.05926 )\n\nLouis Vervoort "Superdeterminism illustr
ated in spin-lattices" ( https://arxiv.org/pdf/1701.08194 )\n\nJarek Duda
“Ising violation of Mermin’s ‘tossing 3 coins\, at least 2 give the
same’” ( https://arxiv.org/pdf/0910.2724 )\n
LOCATION:https://researchseminars.org/talk/QMFNoT/30/
END:VEVENT
BEGIN:VEVENT
SUMMARY:John Macken
DTSTART;VALUE=DATE-TIME:20220331T150000Z
DTEND;VALUE=DATE-TIME:20220331T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/31
DESCRIPTION:Title:
A Quantum Vacuum Model Unites an Electron’s Gravitational and Electromag
netic Forces\nby John Macken as part of QM Foundations & Nature of Tim
e seminar\n\n\nAbstract\nWhen physicists attempt to create a model of a fu
ndamental particle\, the immediate objective is to have the model match th
e particle’s known properties. However\, for the model to be considered
“useful”\, it must ultimately make correct predictions that advance sc
ience. This presentation is about an electron model that went beyond achie
ving an electron’s known properties and generated correct predictions.\n
\nThe original objective was to match an electron’s wave-particle and po
int particle properties. However\, the model unexpectantly also generated
an electron’s gravitational and electromagnetic forces. Most surprising\
, the model predicted these forces are related through a nonlinear effect
incorporating an electron’s wave properties. For example\, gravitational
and electrostatic force equations between two electrons are stated using
the electron’s strain amplitude raised to two different powers. These in
sights reveal the underlying physics of how an electron creates both a gra
vitational field and an electric field.\n\nThe seminar will start with a d
escription of the assumed quantum vacuum model. John Wheeler’s “quantu
m foam” model is analyzed and expanded to include the calculated impedan
ce of spacetime and the bulk modulus of spacetime. The electron model must
achieve an electron’s de Broglie wave characteristics. This requirement
dictates the electron model must be a wave with Planck length amplitude t
hat is rotating at an electron’s Compton frequency with ħ/2 angular mom
entum. Besides subjects covered in the title paper\, electrical charge\, e
lectric fields\, and photons will also be discussed.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/31/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Mario G. Silveirinha (ULisboa)
DTSTART;VALUE=DATE-TIME:20220414T150000Z
DTEND;VALUE=DATE-TIME:20220414T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/32
DESCRIPTION:Title:
Time-Crystal Model of the Electron Spin\nby Mario G. Silveirinha (ULis
boa) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\nThe
time-crystal concept was originally introduced by Frank Wilczek [1] and r
elates to systems with a spontaneously broken time-translational symmetry\
, such that the ground-state evolves periodically in time\, not withstandi
ng the equations of motion are invariant under arbitrary time-translations
(i.e.\, do not depend on the time origin). Thus\, the ground state of a t
ime-crystal is some sort of “perpetuum mobile”. The time-crystal idea
was originally introduced in the context quantum many-body systems. \nIt i
s natural to wonder if non-driven classical time-crystals may naturally oc
cur in nature and if they can have a role in the description of physical r
eality. In this talk\, I will show that a hypothetical classical massless
particle has forcibly a time-crystal (non-driven) dynamics characterized b
y a spontaneous time symmetry breaking that originates a spin angular mome
ntum. I will show that a time-crystal particle is formed by two inseparabl
e components: a massive-component that behaves as a classical particle and
a wave-component that whirls around the “particle” and generates the
spin and an intrinsic angular momentum. The spin vector is parallel to the
binormal of the velocity trajectory and is the spatial component of a 4-v
ector. The trajectory of the particle is fully controlled by the trajector
y of the wave\, reminiscent of the pilot-wave theory of de Broglie and Boh
m. Furthermore\, in the proposed framework the “mass” is an emergent p
roperty\, in the sense that it originates from the fact that the center of
mass frame speed is necessarily less than c. The trajectory of a time-cry
stal particle is controlled by a dynamical least action principle. The mas
sless-component dynamically probes the nearby space and the particle moves
on average towards the direction of space that minimizes an action integr
al.\nInterestingly\, the proposed model predicts the precession of the spi
n vector about a static magnetic field\, and most remarkably it suggests t
hat the mismatch between the spin precession frequency omega_s and the cyc
lotron frequency omega_c –which is at the origin of the famous anomalous
magnetic moment – is a manifestation of the electromagnetic self-energy
. The time-crystal model pr edicts that the difference between omega_s and
omega_c results in an axial oscillatory motion\, which is consistent with
the experiment typically used to measure the anomalous magnetic moment.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/32/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Manfried Faber (TU Wien)
DTSTART;VALUE=DATE-TIME:20220428T150000Z
DTEND;VALUE=DATE-TIME:20220428T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/33
DESCRIPTION:Title:
From soft Dirac monopoles to the Dirac equation\nby Manfried Faber (TU
Wien) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\nI
n the model of topological particles we have four types of topologically s
table dual Dirac monopoles with soft core and finite mass. We discuss the
steps how to geta Dirac equation for these particles. We show especially t
hat we arrive at the Dirac equation in the limit\, where the soft solitons
approach singular dual Dirac monopoles.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/33/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ruth Kastner (UMD)
DTSTART;VALUE=DATE-TIME:20220512T150000Z
DTEND;VALUE=DATE-TIME:20220512T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/34
DESCRIPTION:Title:
The Relativistic Transactional Formulation of Quantum Theory\nby Ruth
Kastner (UMD) as part of QM Foundations & Nature of Time seminar\n\n\nAbst
ract\nI provide an overview of the transactional formulation of quantum th
eory\, including its recently developed relativistic features. In this fo
rmulation\, the basic field interaction is time symmetric\, corresponding
to virtual photons. This interaction is an unmediated\, direct connection
between charges\, which challenges our usual preference for locality. Howe
ver\, the interaction can be elevated\, via a form of temporal symmetry br
eaking\, to the local\, causal transfer of a real photon from an emitter t
o an absorber. This constitutes a microscopic basis for the emergence of a
n arrow of time. The model also yields a well-defined account of quantum m
easurement.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/34/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marian Kowalski (Ontario Tech University)
DTSTART;VALUE=DATE-TIME:20220609T150000Z
DTEND;VALUE=DATE-TIME:20220609T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/35
DESCRIPTION:Title:
The semi-classical\, quantum and EM process of photon emission by the H at
om\nby Marian Kowalski (Ontario Tech University) as part of QM Foundat
ions & Nature of Time seminar\n\n\nAbstract\nLight emitted from atoms duri
ng transitions of electrons from higher to lower discrete states has the f
orm of photons carrying energy and angular momentum. The paper considers t
he process of emission of a single photon from the hydrogen atom by using
quantum theory and Maxwell's equations. The electric and magnetic fields o
f a photon arise from the time-dependent quantum probability densities of
the orbit and the spin current. This paper is an extension of the semi-cla
ssical description of photon emission published by the author earlier in 1
999. In the semi-classical approach the Coulomb force and a radiation resi
stance force have been taken into account to get time dependent emission o
f the photon. In both the quantum and semi-classical cases the transition
takes place within a time interval equal to one period of the photon's wav
e. The creation of a one-wavelength-long photon is supported by the result
s of experiments using ultra-fast (ultra-short) laser pulses to generate e
xcited atoms\, which emit light pulses shorter than two photon wavelengths
.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/35/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jarek Duda (Jagiellonian U)
DTSTART;VALUE=DATE-TIME:20220623T150000Z
DTEND;VALUE=DATE-TIME:20220623T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/36
DESCRIPTION:Title:
Electron diffusion model of semiconductor p-n junction (diode) – where i
s the classical-quantum boundary?\nby Jarek Duda (Jagiellonian U) as p
art of QM Foundations & Nature of Time seminar\n\n\nAbstract\nThere is a b
asic question of what stationary probability distribution should we expect
\, e.g. for [0\,1] range: standard uniform rho=1\, or maybe quantum rho~si
n2 ? Experiments show that\, at least for electrons and neutrons\, we shou
ld use the latter - bringing difficult open question where is the classica
l-quantum boundary?\nWe will discuss Maximal Entropy Random Walk (MERW)-ba
sed diffusions\, allowing to understand and repair inconsistency between p
redictions of these two approaches. While standard diffusion turns out to
only approximate the (Jaynes) maximal entropy principle\, MERW really maxi
mizes it – leading to stationary probability distribution exactly as qua
ntum ground state\, with Anderson-like localization. Including mean-field
self-interaction between electrons\, there was obtained proper asymmetric
non-linear Ohm law for model of semiconductor p-n junction (diode) — wit
h conductance easy only in one direction.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/36/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Valeriy Sbitnev (Berkeley)
DTSTART;VALUE=DATE-TIME:20220707T150000Z
DTEND;VALUE=DATE-TIME:20220707T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/37
DESCRIPTION:Title:
Quaternion algebra on 4D superfluid quantum space-time. Dirac and Majorana
relativistic fermion fields\nby Valeriy Sbitnev (Berkeley) as part of
QM Foundations & Nature of Time seminar\n\n\nAbstract\nGravitomagnetic eq
uations result from applying quaternion differential operators to the ener
gy-momentum tensor written in the quaternion basis. These equations are si
milar to Maxwell’s EM equations. They are parent ones generating a serie
s of equations describing the real physical processes. The vorticity equat
ion gives solutions of vortices with nonzero vortex cores and infinite lif
etime. The Hamilton-Jacobi equation loaded by the quantum potential opens
the hydrodynamic approach on the fermionic fields. In the relativistic lim
it\, this equation (together with the continuity one) underlies fermionic
fields leading to the emergence of the Dirac equation. Analysis of its sol
utions discloses the existence of the paired Majorana fermions having inte
ger spins 1 or 0 as\, for example\, ortho- and para- hydrogens. One more
solution of the Dirac equation leads to the existence of the particle-anti
particle pair.\nThe electron-positron pairs ordered into a macroscopic coh
erent Bose-Einstein condensate give a simple example of the existence of W
ilczek's time crystals. The pairs of proton-antiprotons\, loaded by accomp
anying electron-positron buffers\, can pose long-lived ordered quantum ob
jects. These objects representing the Bose-Einstein condensate look like W
ilczek's time crystals as well.\nThese macroscopic coherent ensembles are
discussed in the light of the ball lightning manifestations capable of tun
neling across hard obstacles\, for example\, window glasses.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/37/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Samo Kralj (University of Maribor)
DTSTART;VALUE=DATE-TIME:20221014T150000Z
DTEND;VALUE=DATE-TIME:20221014T170000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/38
DESCRIPTION:Title:
Liquid crystals as a playground of topological defects\nby Samo Kralj
(University of Maribor) as part of QM Foundations & Nature of Time seminar
\n\n\nAbstract\nPhysical fields might be fundamental constituents of natur
e. Furthermore\, topological defects in relevant physical fields might pla
y the role of fundamental particles as first demonstrated by Skyrmy [1].
He introduced topologically protected solitons (referred to as skyrmions)
as candidates for mesons and baryons. Therefore\, one could explain all na
tural complexity from the viewpoint of TDs and their assemblies. \nLiquid
crystals (LCs) are particularly adequate to study TDs and related topologi
cal phenomena. They exhibit diverse qualitatively different TDs in form of
point\, line\, wall\, and texture configurations. In LCs different assemb
lies of TDs could be relatively easily created\, stabilized\, manipulated\
, and observed (e.g.\, using polarizing microscopy). \nIn the lecture\, w
e will present our studies of different TDs in orientationally ordered LCs
that might be analogs of fundamental excitations in nature the behavior
of which is still not understood. We demonstrate that geometrical curvatur
e [2] is the mean generic formation and TD stabilization mechanism. We sh
ow that the topology of torus stabilizes “chargeless” TDs [3] which mi
ght play the role of neutrinos. In LCs they form an elastic ribbon-like st
ructure that embeds the toroidally shaped LC-immersed colloidal particle.
Furthermore\, we present the formation and stabilization mechanism of mero
ns (skyrmion family members) and their condensation in crystal-like config
urations. In pour experiments\, we made their structural details and dynam
ics experimentally accessible by forcing the LC structure close to a criti
cal point\, in which the relevant order parameter field correlation length
and relaxation time diverge. These quantities dominate the characteristic
linear size of the defect core structure and its dynamic features. In par
ticular\, we show how TDs mediate temperature-driven order-disorder phase
transition in chiral LCs.\n \n\n[1] T. H. R. Skyrme\, A unified fi
eld theory of mesons and baryons\, Nucl. Phys. 31\, 556 (1962).\n[2] L. Me
sarec\, W. Góźdź\, A. Iglič\, S. Kralj\, Effective topological charge
cancelation mechanism\, Sci. Rep. 6\, 27117 (2016).\n[3] S. Harkai\, B.S.
Murray\, C. Rosenblatt\, S. Kralj\, Electric field driven reconfigurable m
ultistable topological defect patterns\, Phys. Rev. Res. 2\, 013176 (2020)
.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/38/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jarek Duda (Jagiellonian U)
DTSTART;VALUE=DATE-TIME:20221208T160000Z
DTEND;VALUE=DATE-TIME:20221208T180000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/39
DESCRIPTION:Title:
Topological defects with electromagnetic + gravitomagnetic interactions\nby Jarek Duda (Jagiellonian U) as part of QM Foundations & Nature of Ti
me seminar\n\n\nAbstract\nClassical electromagnetism has two weaknesses: G
auss law allows for non-integer charges\, and infinite energy of electric
field of a charge. I will start with Faber's model repairing both: definin
g electric field as curvature of a deeper vector field Gauss law counts to
pological charge which is quantized\, Higgs-like potential deforms the fie
ld to finite energy\, also getting tiny Coulomb corrections in agreement w
ith the running coupling effect. Then I will discuss its Landau-de Gennes-
like extension to field of 3x3 matrices\, among others adding low energeti
c O(1) degree of freedom resembling quantum phase\, governed by Klein-Gor
don-like dynamics. Finally extending to 4D tensor field adds dynamics gove
rned by second set of Maxwell equations as in gravitoelectromagnetic appro
ximation of the general relativity.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/39/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Donald Chang\, John Macken\, Alexander Burinskii\, Manfried Faber\
, Jarek Duda\, Samo Kralj\, Chantal Roth\, Robert Close
DTSTART;VALUE=DATE-TIME:20230107T150000Z
DTEND;VALUE=DATE-TIME:20230107T180000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/40
DESCRIPTION:Title:
Models of particles mini-conference\nby Donald Chang\, John Macken\, A
lexander Burinskii\, Manfried Faber\, Jarek Duda\, Samo Kralj\, Chantal Ro
th\, Robert Close as part of QM Foundations & Nature of Time seminar\n\n\n
Abstract\nModels of particles mini-conference to discuss fundamental quest
ions e.g.:\n\nWhy is electric charge quantized (no half-electron)?\nWhere
does the Coulomb interaction come from?\nHow to prevent infinites e.g. of
electric field of point charge?\nSpin\, magnetic dipole\, angular momentum
\, zitterbewegung/clock of electron?\nWhy do we have 3 leptons? Where does
their difference come from?\nWhat are neutrinos\, baryons\, mesons\, stra
ngeness?\nWhy proton is lighter than neutron? Deuteron than n+p?\nWhat hol
ds nuclei together against Coulomb? Neutrons in halo nuclei?\nHow to get g
ravity\, Newton force for particles?\nWhy does the model behave quantum me
chanically not classically?\nWhat photon is? What prevents its dissipation
? What is its energy distribution?\n\nSchedule:\n16:00 Donald Chang\, Mode
lling the quantum vacuum as a dielectric medium based on the Maxwell theor
y\n\n16:20 John Macken\, The wave-based model of the universe\n\n16:40 Ale
xander Burinskii\, Gravitating electron formed by Kerr-Newman black hole s
olution (article)\n\n17:00 Manfried Faber\, A geometric model in 3+1D spac
e-time for electrodynamic phenomena (article)\n\n17:20 Jarek Duda\, Explor
ing resemblance between liquid crystal topological defects and particle ph
ysics (materials)\n\n17:40 Samo Kralj\, Conserved quantities characterizin
g line defects in nematic liquid crystals (article)\n\n18:00 Chantal Roth\
, Visualizations of spin ½ (materials)\n\n18:20 Robert Close\, Elastic So
lid Model of the Universe (materials)\n\nThen discussion focused on the ab
ove questions\, materials in attached.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/40/
END:VEVENT
BEGIN:VEVENT
SUMMARY:John G. Williamson (University of Glasgow)
DTSTART;VALUE=DATE-TIME:20230114T150000Z
DTEND;VALUE=DATE-TIME:20230114T180000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/41
DESCRIPTION:Title:
A new relativistic quantum mechanics\nby John G. Williamson (Universit
y of Glasgow) as part of QM Foundations & Nature of Time seminar\n\n\nAbst
ract\nDirac's theory has been the "gold standard" of relativistic quantum
mechanics (RQM) for more than ninety years. During that time the quantum m
echanics used in the imagining and engineering of quantum devices has been
in the realm of\, almost exclusively\, the non-relativistic Schroëdinger
theory using complex wave-functions.\n\nThe merely complex is\, however\,
too simple to properly represent covariant\, relativistic wave-functions.
Furthermore\, the merely complex cannot properly represent intrinsic rela
tivistic quantum properties such as the intrinsic spin. If one does not ha
ve the proper theory\, the internal behaviour of the elementary particles\
, their mutual inter-actions\, and the very quantum properties of collecti
ve quantum systems\, such as high-temperature superconductors\, cannot be
properly thought about at all.\n\nThe new theory presented here aims to r
ectify those deficiencies: it treats the elementary particle masses in a f
undamentally different way to Dirac\, incorporating them as a pair of elem
ents within a hypercomplex algebra including both the complex algebra\, an
d the quaternion algebra as sub-algebras. This allows a simpler\, and even
more beautiful equation than the Dirac or Maxwell equations to be written
down\, which yet contains them both. This equation may be written simply
as dG=C\, where "d" is a relativistic space-time derivative\, "G" is a six
teen component multi-vector\, and "C" is a sixteen component array of real
constants\, most of which are zero.\n\nThe new theory opens up new vistas
\, new thinking\, and new connections. It provides an underlying basis to
the theory of Quantum ElectroDynamics\, encompasses the Newton\, Maxwell a
nd Einstein\, and removes all of the outstanding problems in RQM.\n\nThe t
alk will focus on answering the list of questions posed by the group (repe
ated below)\, as well as a set of further fundamental questions\, includin
g the origin of the g-2 term in the theory. This will include the nature o
f the "generations" of particles in the standard model. It is argued that
the addition of this new element to the "standard model" will allow one to
promote to a "standard theory" fit for progressing the new challenges of
the 21st century.\n\nQuestions to be answered include\, but are not limite
d to:\n\nWhy electric charge is quantized.\nWhere the Coulomb interaction
comes from\nHow one can prevent infinites e.g. of electric field of a poin
t charge\nOrigins of the induced magnetic dipole and the intrinsic angular
momentum\nOrigin of the zitterbewegung/clock of the electron\nWhy we have
3 generations of leptons\nWhy the proton is lighter than neutron\nWhat ho
lds nuclei together against the Coulomb force\nWhat holds charged elementa
ry particles together against the enormous Coulomb repulsion\nHow to get g
ravity from relativistic quantum mechanics and Q.E.D.\n\nThe talk will foc
us on answering the list of questions posed by the group\, including the n
ature and origin of charge\, the reason for and the nature of the "generat
ions" of particles in the standard model. It is argued that the addition o
f this new element to the "standard model" will allow one to promote to a
"standard theory" fit for progressing the new challenges of the 21st centu
ry.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/41/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Bryan Sanctuary (McGill University)
DTSTART;VALUE=DATE-TIME:20230128T150000Z
DTEND;VALUE=DATE-TIME:20230128T180000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/42
DESCRIPTION:Title:
Extrinsic Quaternion Spin\nby Bryan Sanctuary (McGill University) as p
art of QM Foundations & Nature of Time seminar\n\n\nAbstract\nIf the symme
try of a spin ½ is changed from SU(2) to the quaternion group\, S8 \, the
n spin changes from a point particle to one with a 2D structure. This re
veals a missed property of spin. In addition to the usual up and down pola
rized states that are measured\, two additional coherent states for L and
R helicity are found. This is not the usual helicity defined in particle
physics\, but an additional attribute of spin. Under the quaternion group\
, symmetric polarizations are described by the Pauli spin vector\, $\\sigm
a$ and the antisymmetric helicity by the bivector\, $i\\sigma$. Moreover\
, surprisingly\, the four states of quaternion spin form one particle in t
he Dirac field which replaces the interpretation of Dirac whereby the two-
dimensional Dirac spin and its mirror are treated as measured spin and its
antimatter twin.\n\nPolarization and coherence are two complementary elem
ents of reality\, analogous to position-momentum\; angular momentum and an
gle\; and energy and time.\n\nMoreover\, it is found that the helicity acc
ounts for the correlation found in coincident EPR experiments which give a
n apparent violation of Bell’s Inequalities. As seen in the figure\, th
e simulation gives the correlation and more that is observed in experiment
. The simulation is trivial\, simply finding which way the spin axis spin
s. \n\nThe talk is pedagogical with simple geometric arguments to describe
a separated EPR pair with no entanglement. This obviates the need for no
n-local connectivity between Alice and Bob and shows that the apparent vio
lation of Bell’s Inequalities is evidence for local realism\, and not no
n-locality.\n\nThe theory has no Local Hidden Variables\, so Bell’s Theo
rem is irrelevant\, and always satisfied.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/42/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marc Fleury\, Richard Gill\, Jarek Duda\, Álvaro García\, Robert
Close\, James Tankersley
DTSTART;VALUE=DATE-TIME:20230211T150000Z
DTEND;VALUE=DATE-TIME:20230211T210000Z
DTSTAMP;VALUE=DATE-TIME:20230205T213126Z
UID:QMFNoT/43
DESCRIPTION:Title:
Bell mini-conference\nby Marc Fleury\, Richard Gill\, Jarek Duda\, Ál
varo García\, Robert Close\, James Tankersley as part of QM Foundations &
Nature of Time seminar\n\nInteractive livestream: http://th.if.uj.edu.pl/
~dudaj/QMFNoT\n\nAbstract\nBell mini-conference to discuss fundamental que
stions e.g.\n\nCan physics be both local and realistic? How to understand\
, repair (one of) them?\n\nCan classical field theory violate Bell-like in
equalities?\n\nWhat is the difference between classical and quantum allowi
ng to violate Bell?\n\nWhat other systems allow for Bell violation\, e.g.
Ising model?\n\nWhere does the square in Born rule come from? Is it the on
ly reason for Bell violation?\n\nWhat is measurement\, deexcitation\, etc.
? Are they instant processes\, reversible\, e.g. in Stern-Gerlach?\n\nIs t
he Schrödinger equation local\, realistic? If so\, how can QM violate Bel
l?\n\n \n\nSchedule:\n\n16:00 Marc Fleury\, Review of Isolation achieved i
n the Aspect and Zeilinger experiments. The case of standing waves \n\n16
:30 Richard Gill\, Myths and misunderstandings. Bell’s “Reply to criti
cs” said it all \n\n17:00 Jarek Duda\, Boltzmann vs Feynman path ensembl
e - Born rule and Bell violation in Ising model \n\n17:30 Álvaro García\
, Correlation and contextuality loopholes are equivalent \n\n18:00 Robert
Close\, Geometrical Model of Bell Inequality Violation \n\n18:30 James Tan
kersley\, Faking Bell\n
LOCATION:https://researchseminars.org/talk/QMFNoT/43/
URL:http://th.if.uj.edu.pl/~dudaj/QMFNoT
END:VEVENT
END:VCALENDAR